On 21 dec 2008, at 08:56, Gee, Norman wrote:
I guess with the rumor conversion to DB2, it would no longer be feasible to place the database on JBOD mirror by TSM. The recommendation may be RAID 5 or 6 storage with fibre channel disks and not SATA disks. Am I close?
Well, even with current TSM levels I would only use 15kRPM disks in RAID1. DB2 has no software mirroring, but your OS might very well do the job for you, I know that Linux and AIX can, and I think recent windows levels can do the same. RAID5 or RAID6 are great technologies, but I don't believe that they mix very well with high performance databases, not for TSM <= 5.5, and not for DB2 either. SATA disks are only useful in very small TSM environments (up to a few gig database), and well, that wont change much with DB2. -- Met vriendelijke groeten/Kind regards, Remco Post, PLCS +31624821622
